一种低浓度瓦斯氧化用多级分流预热装置

Abstract

本实用新型涉及低浓度瓦斯氧化处理的技术领域，尤其是涉及一种低浓度瓦斯氧化用多级分流预热装置。本实用新型包括输送管道，输送管道始端连接集气管道，输送管道输气一端连接分流管道，分流管道沿着输送管道内瓦斯气体输送方向依次排列连接，分流管道连接有气体混合罐，气体混合罐及一侧输气管道上包裹安装有预热箱。通过分流管道将低浓度瓦斯气体分成多个支路，结合气体混合罐，实现气体的多级分流与集中混合，有效提升气体流量和温度的均匀性，避免局部温度或浓度波动，保障氧化反应稳定进行，多级分流结构分散了气体流量冲击，各分流支路独立调节，有效稳定系统压力，减少流量波动，提升预热系统的稳压能力，有利于系统的连续安全运行。

Claims

1. A multi-stage split-flow preheating device for low-concentration gas oxidation, comprising a conveying duct (1), characterized in that: The beginning of the conveying pipe (1) is connected to the gas collecting pipe, and the gas conveying end of the conveying pipe (1) is connected to the diversion pipe (2). The diversion pipe (2) is arranged and connected in sequence along the gas conveying direction inside the conveying pipe (1). The diversion pipe (2) is connected to a gas mixing tank (3). A preheating box (4) is wrapped around the gas mixing tank (3) and the gas conveying pipe on one side.

2. A multi-stage split flow preheating device for low concentration gas oxidation according to claim 1, characterized in that: The conveying pipe (1) is connected to and installed with a filter (11). The filter (11) is filled with filter material, and a maintenance door is installed on one side of the filter (11) by bolt sealing. A dehumidifier (12) is installed on one side of the filter (11). A water storage container is installed at the bottom of the dehumidifier (12), and a drain valve is installed at the bottom of the water storage container.

3. A multi-stage split-flow preheating device for low-concentration gas oxidation according to claim 2, characterized in that: The end of the conveying pipe (1) is connected to a collection tank (13). The side of the collection tank (13) is connected to a diversion pipe (2). The collection tank (13) is connected to and equipped with a monitor (14). The monitor (14) includes a pressure sensor, a gas concentration sensor, a temperature sensor and a humidity sensor. A perforated plate (15) is installed inside the collection tank (13). The perforated plate (15) is arranged in sequence inside the collection tank (13) and divides the collection tank (13) into multiple layers. Each layer of the collection tank (13) is individually connected to a diversion pipe (2).

4. The multi-stage split-flow preheating device for low-concentration gas oxidation according to claim 1, characterized in that: The diversion pipe (2) is connected to the delivery pipe (1) through the diversion valve (21). A flow meter (22) is installed in the diversion pipe (2) on one side of the diversion valve (21). The flow meter (22) is connected to an external flow statistics display device.

5. A multi-stage diversion preheating device for low-concentration gas oxidation according to claim 4, characterized in that: A voltage regulator (23) is installed on the diversion pipe (2), and the voltage regulator (23) includes a pressure control component and a one-way blocking component.

6. A multi-stage split flow preheating device for low concentration gas oxidation according to claim 4, characterized in that: An electrostatic eliminator (24) is connected to and installed on the diversion pipe (2). The electrostatic eliminator (24) is grounded through a wire. An insulating wrapping layer and an insulating pad layer are provided on the outer surface and external connection of the diversion pipe (2).

7. A multi-stage split flow preheating device for low concentration gas oxidation according to claim 1, characterized in that: The gas mixing tank (3) is provided with an air inlet valve (31) on one side and is connected to an external gas supply system through the air inlet valve (31). The gas mixing tank (3) is connected to a gas oxidation treatment system through a pressure pump (32).

8. A multi-stage split-flow preheating device for low-concentration gas oxidation according to claim 7, characterized in that: The gas mixing tank (3) is provided with a corrosion-resistant lining (33) on its inner wall, and a guide vane (34) is provided inside the gas mixing tank (3), with the guide vane (34) arranged in an alternating pattern.

9. A multi-stage split flow preheating device for low concentration gas oxidation according to claim 1, characterized in that: The preheating box (4) is wrapped with an insulation wrap (41) on the outside, and a heater (42) is installed inside the preheating box (4). The heater (42) is connected to an external power supply and controlled by a temperature controller.

10. A multi-stage diversion preheating device for low-concentration gas oxidation according to claim 9, characterized in that: The preheating box (4) is equipped with a heat source pipe (43), which is connected to a gaseous or liquid heat source.

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